Menu
2019
2019 BY MONTH: JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
This list last updated
- December 30, 2019, Department letter providing the DOE-SR H-Canyon Exhaust (HCAEX) Tunnel evaluation which addresses the ability of the HCAEX Tunnel to perform its function as a post-seismic safety class control structure.
- December 30, 2019, Board letter extending the due date for NNSA to provide a briefing on LANL PF-4 safety basis.
- December 27, 2019, Board letter providing its observations regarding certain ramps, loading docks, and appurtenances at the Pantex Plant.
- December 20, 2019, Department letter responding to the Board letter of August 27, 2019, regarding the safety significant confinement ventilation system at WIPP.
- December 19, 2019, Department letter transmitting the Annual Report for Fiscal Year 2019, to also include deliverables 1-14, 3-3, and 3-4 of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
- December 18, 2019, Board letter transmitting an anonymous allegation regarding the ventilation systems at the Waste Isolation Pilot Plant to the Secretary for action as the Secretary deems appropriate.
- December 9, 2019, Board letter granting a 45-day extension for DOE to provide a response to questions regarding flammable gas hazards associated with solid wastes.
- December 9, 2019, Board letter granting a 25-day extension to provide a report and brief outlining plans to address safety issues with the Safety Significant Confinement Ventilation System (SSCVS), at the Waste Isolation Pilot Plant.
- December 5, 2019, Board letter reaffirming Recommendation 2019-2, Safety of the Savannah River Site Tritium Facilities.
- December 4, 2019, Board letter documenting its concerns related to the design and qualification of emergency lighting systems to ensure their availability and function during or after a design basis earthquake. The Board is providing this information for DOE’s use.
- December 4, 2019, Board letter providing the results of its initial review of the safety basis and criticality safety evaluation for the Oak Ridge Oxide Processing campaign at Oak Ridge National Laboratory.
- November 25, 2019, Department letter notifying the Board that DOE has completed Actions 2-3 and 2-4 of the Implementation Plan for Recommendation 2012-2, Hanford Tank Farms Flammable Gas Safety Strategy.
- November 25, 2019, Department letter requesting a 25-day extension to provide response to the Board's August 27, 2019, letter regarding the Safety Significant Confinement Ventilation System at the Waste Isolation Pilot Plant.
- November 18, 2019, Board Letter responding to DOE Office of River Protection (ORP) letter of May 15, 2019, regarding design issue resolution in Hanford’s Waste Treatment and Immobilization Plant pulse jet mixers control system.
- November 15, 2019, Board letter establishing a 60-day reporting requirement for a briefing on 1) the NNSA strategy for ensuring the deficient safety systems at the LANL Plutonium Facility will be upgraded in order to meet a schedule commensurate with future national security missions and 2) the approach for addressing the weaknesses in the analyses that support the Plutonium Facility safety basis.
- November 15, 2019, Department letter requesting a 45-day extension to provide a response to the Board’s October 18, 2019, letter regarding flammable gas hazards associated with solid wastes.
- November 12, 2019, Board letter transmitting its Technical Report (DNFSB/TECH-44: Los Alamos National Laboratory Plutonium Facility Leak Path Factor Methodology) for DOE’s information and use.
- November 6, 2019, Board letter advising DOE to take action to revise DOE Standard 3014-2006, Accident Analysis for Aircraft Crash into Hazardous Facilities, in order to address the identified safety issues enumerated in the DNFSB Staff Report.
- October 28, 2019, Board letter responding to DOE’s letter of September 23, 2019, and establishing a reporting requirement for DOE to confirm a briefing on the Implementation Plan for Recommendation 2019-1, Uncontrolled Hazard Scenarios and 10 CFR 830 Implementation at the Pantex Plant.
- October 18, 2019, Board letter establishing a reporting requirement for DOE to provide response to questions regarding flammable gas hazards associated with solid wastes.
- October 11, 2019, Board letter responding to NNSA letter dated August 9, 2019, concerning Board access to all phases of the nuclear explosive safety study process.
- October 10, 2019, Board letter responding to DOE’s rejection of Recommendation 2019-2, Safety of Savannah River Site Tritium Facilities, and establishing a reporting requirement for DOE to confirm a briefing on the basis for rejecting the Recommendation.
- October 7, 2019, Board letter responding to DOE-ORP letter dated December 10, 2018, regarding the electrical distribution system at Hanford's Waste Treatment and Immobilization Plant.
- October 7, 2019, Board letter providing the results of its review of the Oak Ridge National Laboratory’s Building 2026 preliminary documented safety analysis for the Initial Processing Campaign for DOE’s information and use.
- September 23, 2019, Department letter responding to the Board letter of August 22, 2019, regarding the Department’s Implementation Plan for Recommendation 2019-1, Uncontrolled Hazard Scenarios and 10 CFR 830 Implementation at the Pantex Plant.
- September 10, 2019, Department letter responding to DNFSB Recommendation 2019-2, Safety of the Savannah River Site Tritium Facilities.
- August 30, 2019, Department letter documenting resolution of concerns related to erosion wear allowances for piping, vessels, and pulse-jet mixers at the Waste Treatment and Immobilization Plant at the Hanford Site.
- August 27, 2019, Board letter establishing a 90-day reporting requirement for plans to address safety issues with the safety significant confinement ventilation system at the Waste Isolation Pilot Plant.
- August 23, 2019, Board letter requesting that DOE/NNSA provide a briefing regarding federal oversight of nuclear criticality safety at Y-12.
- August 22, 2019, Board letter regarding the Department’s Implementation Plan for Board Recommendation 2019-1, Uncontrolled Hazard Scenarios and 10 CFR 830 Implementation at the Pantex Plant, and reaffirming the Board’s Recommendation.
- August 9, 2019, Department letter responding to the Board letter of June 12, 2019, regarding DNFSB access to all phases of the Nuclear Explosives Safety Study Group process.
- August 5, 2019, Board letter granting the 45-day extension for DOE to provide the response for Recommendation 2019-2, Safety of the Savannah River Site Tritium Facilities.
- July 31, 2019, Department letter requesting a 45-day extension to provide the response for Recommendation 2019-2, Safety of the Savannah River Site Tritium Facilities.
- July 30, 2019, Board letter closing Recommendation 2011-1, Safety Culture at the WTP, and providing its report, "Effectiveness of Actions to Improve WTP Safety Culture" for DOE’s consideration.
- July 29, 2019, Department letter communicating a 3-year delay for completing the implementation of Design/Operational Improvements 2 and 3 for the 242-A Evaporator facility at Hanford.
- July 25, 2019, Board letter transmitting the results of its review of the Y-12 National Security Complex (Y-12) Criticality Safety Program.
- July 24, 2019, Department letter responding to the Board letter of June 5, 2019, requesting information related to the Y-12 Criticality Safety Program.
- July 16, 2019, Department letter transmitting the Implementation Plan for Board Recommendation 2019-1, Uncontrolled Hazard Scenarios and 10 CFR 830 Implementation at the Pantex Plant.
- July 2, 2019, Board letter transmitting the results of its review of the Hanford Site electrical infrastructure and systems for DOE’s use and information.
- July 2, 2019, Board letter thanking the DOE panelists for participating in the Board’s public hearing on June 20, 2019.
- June 12, 2019, Board letter establishing a 30-day reporting requirement for a report if the Secretary has reached a determination to deny access to all phases of the nuclear explosive safety (NES) study process.
- June 11, 2019, Board letter forwarding Recommendation 2019-2, Safety of the Savannah River Site Tritium Facilities.
- June 5, 2019, Board letter documenting the results of its review of STD-1158-2010, Self-Assessment Standard for DOE Contractor Criticality Safety Programs.
- June 5, 2019, Board letter establishing a 30-day reporting requirement for DOE to provide information regarding the Y-12 Complex criticality safety program.
- June 5, 2019, Board letter inviting Under Secretary Dabbar to provide opening remarks at the DNFSB public hearing to discuss the safety of waste processing and storage at defense nuclear facilities, scheduled for June 20, 2019.
- May 22, 2019, Board letter documenting the resolution of safety issues in the revised safety basis for the LANL Radioassay and Nondestructive Testing (RANT) Facility.
- May 21, 2019, FY2018 Annual Report to Congress on DOE's activities relating to the Defense Nuclear Facilities Safety Board.
- May 17, 2019, Board letter requesting DOE to inform the Board by May 22, 2019, of a preferred date any time from June 3 through June 24 of 2019 on which witnesses listed in the enclosure will participate in the public hearing focused on the Department of Energy's Safety Management of Waste Storage and Processing in the Defense Nuclear Facilities Complex.
- May 15, 2019, Department letter documenting resolution of DNFSB concerns related to control of pulse-jet mixers at the Waste Treatment and Immobilization Plant.
- May 9, 2019, Board letter responding to DOE’s letter dated October 24, 2018, regarding three open Board issues related to the High Level Waste (HLW) Facility at Hanford's Waste Treatment and Immobilization Plant, and providing the Staff Report on the HLW Facility technical issues for DOE’s information and use during the design process.
- May 7, 2019, Department letter responding to the Board letter of March 12, 2019, regarding the waste drums over-pressurization at the Idaho National Laboratory Site.
- April 22, 2019, Board letters (7) inviting DOE participants to its public hearing to discuss the safety of waste processing and storage at defense nuclear facilities. The public hearing is being scheduled for May 22, 2019, at the Board's Washington, DC, headquarters.
- April 16, 2019, Department letter accepting Recommendation 2019-1, Uncontrolled Hazard Scenarios and 10 CFR 830 Implementation at the Pantex Plant.
- April 1, 2019, DNFSB Twenty-Ninth Annual Report to Congress for Calendar Year 2018.
- March 21, 2019, Board letter documenting concerns regarding seismic hazards for the Device Assembly Facility at the Nevada National Security Site for DOE’s information and consideration.
- March 12, 2019, Board letter establishing a 45-day reporting requirement for a response and briefing, including analysis or supporting data, to questions regarding the waste drums over-pressurization at the Idaho National Laboratory.
- February 27, 2019, Board letter requesting that DOE provide a briefing to the Board regarding the Integrated Waste Treatment Unit (IWTU) facility at Idaho Cleanup Project.
- February 20, 2019, Board letter forwarding Recommendation 2019-1, Uncontrolled Hazard Scenarios and 10 CFR 830 Implementation at the Pantex Plant.
- February 6, 2019, Board letter closing DNFSB Recommendation 2015-1, Emergency Preparedness and Response at the Pantex Plant.
- February 6, 2019, Board letter establishing a 30-day reporting requirement for a briefing regarding the Nuclear Criticality Safety Program at the Y-12 National Security Complex, to include overall performance and recent reportable occurrences.
- January 25, 2019, Department letter transmitting the Fiscal Year 2018 Annual Criticality Safety Metrics Report.
- January 18, 2019, Board letters (4) confirming DOE participants in the February 21, 2019, public hearing on the implementation of DOE Order 140.1, Interface with the Defense Nuclear Facilities Safety Board, at DOE sites located in New Mexico.